CN1765973A - Flame-proof polypropylene for electronic element and its preparation method - Google Patents

Flame-proof polypropylene for electronic element and its preparation method Download PDF

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Publication number
CN1765973A
CN1765973A CNA2004100676400A CN200410067640A CN1765973A CN 1765973 A CN1765973 A CN 1765973A CN A2004100676400 A CNA2004100676400 A CN A2004100676400A CN 200410067640 A CN200410067640 A CN 200410067640A CN 1765973 A CN1765973 A CN 1765973A
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CN
China
Prior art keywords
polypropylene
flame
electronic
proof
proof polypropylene
Prior art date
Application number
CNA2004100676400A
Other languages
Chinese (zh)
Inventor
辛敏琦
陈晓东
杨涛
唐倬
吴小龙
Original Assignee
上海日之升新技术发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海日之升新技术发展有限公司 filed Critical 上海日之升新技术发展有限公司
Priority to CNA2004100676400A priority Critical patent/CN1765973A/en
Publication of CN1765973A publication Critical patent/CN1765973A/en

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Abstract

The invention relates to a flame-proof polypropylene for electronic element comprising raw materials of the following constituents (by weight proportion): polypropylene 60-80%, combustion inhibitor 5-15%, combustion inhibiting promoter 3-6.5%, toughening agent 5-15%, compatibilzer 2-8%, anti-oxidant 0.1-0.5%, anti-ultraviolet agent 0.05-0.35%. The invention also discloses the preparing process.

Description

A kind of flame-proof polypropylene for electronic element and preparation method thereof
Technical field
The present invention relates to a kind of flame-proof polypropylene for electronic element and preparation method thereof, be applicable to the electronic devices and components of the long flowage structure complexity of injection moulding, belong to the polypropylene modification technical field.
Background technology
The injection raw material that electronic component is used is at present mainly based on raw materials such as PBT, PA6, PA66, since these raw material poor mobile performances, processing difficulties, stress crack resistance performance is poor, and the fraction defective of goods is very high, causes the waste of the material and the energy in process of production.
Summary of the invention
The object of the present invention is to provide a kind of super-high fluidity that has, good stress crack resistance performance is not separated out, anti-aging, inexpensive flame-proof polypropylene for electronic element and preparation method thereof.
For realizing above purpose, technical scheme of the present invention provides a kind of flame-proof polypropylene for electronic element, it is characterized in that, it is made by following materials of weight proportions:
Polypropylene 60-80%
Fire retardant 5-15%
Fire retarding synergist 3-6.5%
Toughner 5-15%
Compatilizer 2-8%
Oxidation inhibitor 0.1-0.5%
Anti UV agent 0.05-0.35%.
Described polypropylene can be a Co-polypropylene, also can be the mixture of Co-polypropylene and homo-polypropylene, and its melting index is 0.8-50g/10min;
Described fire retardant is the organic halogen fire retardant, can be bromide fire retardant;
Described fire retarding synergist is antimonous oxide Sb 2O 3
Described toughner can be metallocene-polyolefin, also can be the polymkeric substance of metallocene-polyolefin and other alkene;
Described compatilizer is the oligopolymer of the graft polymerization of polypropylene grafted unsaturated acid or acid anhydrides, and its melting index is 40-150g/10min, and percentage of grafting is 0.5-1%.
Described oxidation inhibitor is Hinered phenols antioxidant, can be 1010, also can be composite with phosphite ester kind antioxidant, and can be 1010 and 168 composite.
Described photostabilizer is a hindered amine light stabilizer, can be 770,944, also can be 770 and 944 combinations.
A kind of preparation method of flame-proof polypropylene for electronic element is characterized in that, its method is as follows:
(1) weighs raw material by weight ratio;
(2) all raw materials are put into high-speed mixer and mixing 2-5 minute;
(3) discharging;
(4) raw materials mixed is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180-600 rev/min, and temperature is 160-240 ℃.
Polypropylene is as a kind of general-purpose plastics, and inexpensive, light weight is corrosion-resistant, have good processibility, good, the applied range of mechanics harmony, and best thermotolerance is arranged in resins for universal use.Because the injection moulding electronic component requires material to have good flowing property and anti-stress cracking performance and flame retardant properties.Therefore must carry out modification to polypropylene, could satisfy its application in electronic component.
Described organic halogen fire retardant is the organic fire-retardant of present consumption maximum, and its fire retardation mainly is that gas phase is fire-retardant, and the hydrogen halide that the burning back generates is heavier than air, and flame and air are separated, and hydrogen halide can also be caught the free radical in the gas phase simultaneously.Described fire retarding synergist antimonous oxide Sb 2O 3With halogen flame synergistic effect is arranged, its synergistic effect mainly is to cover surface, reduction heat decomposition temperature, Mulberry Extract, termination incendiary chain reaction.
Owing to added a large amount of low-molecular-weight fire retardant and fire retarding synergist, the impact property of material is caused very big influence, add the shock resistance that toughner can improve system significantly.The toughner microparticulate is in system, and when being subjected to impacting, particulate can produce a large amount of crazings, and branching around, absorbs a large amount of striking energys, improves the shock strength and the toughness of material.
Compatilizer is owing to have a both sexes functional group, can the raising system in the dispersion effect of component of opposed polarity, make each compatible well mutually, thereby improve the shock resistance of material.Described compatilizer has very high melting index simultaneously, can improve the flowing property of system.
Oxidation inhibitor makes polypropylene that good processing stability be arranged in the course of processing, avoids color and luster, performance to change.Used Hinered phenols antioxidant can be 1010, also can be composite with phosphite ester kind antioxidant, and composite as 1010 and 168 (1: 1).
Hindered amine light stabilizer can improve the anti-uv-ray of material, prevents material aging.
The present invention adopts polypropylene as matrix resin, makes a kind of flame-proof polypropylene for electronic element, has solved raw material poor mobile performances such as PBT, PA6, PA66, processing difficulties, and stress crack resistance performance is poor, the problem that the fraction defective of goods is very high.
Advantage of the present invention is high workability and stress crack resistance performance, does not separate out, and is more cheap than prices such as PBT, the cost performance height.
Specific embodiments
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment 1 and 2
With the decabromodiphenyl oxide is fire retardant, and fire retarding synergist is antimonous oxide Sb 2O 3, toughner is 1010 and 168 (1: 1) with metallocene PE or POE, oxidation inhibitor, photostabilizer is 770 and 944 (1: 1).
Proportioning 1-2 (weight %)
Material name Proportioning 1 Proportioning 2
Co-polypropylene ??75 ??50
Homo-polypropylene ??-- ??20
Decabromodiphenyl oxide ??13 ??13
??Sb 2O 3 ??6.3 ??6.3
Metallocene PE ??5 ??--
??POE ??-- ??10
??1010/168(1∶1) ??0.5 ??0.5
??770/944(1∶1) ??0.2 ??0.2
All raw materials are put into the high mixer kind in proportion mixed 4 minutes, the screw extrusion press extruding pelletization is used in discharging then, and processing temperature is at 210 ℃, and the screw rod revolution is at 200 rev/mins.
The sample 1 that makes according to embodiment 1, embodiment 2, sample 2 and PBT performance comparison
Test performance contrast (table 2)
Project Sample 1 Sample 2 ??PBT
Tensile strength Mpa ??19.6 ??20.1 ??65
Flexural strength Mpa ??22.7 ??23.2 ??95
Melting index g/10min ??44.6 ??45.4 ??20
Shock strength J/M ??266.6 ??258 ??60
UL94 fire-retardant (1.6mm) ??V 0 ??V 0 ??V 0
Density g/cm 3 ??0.99 ??0.99 ??1.35

Claims (9)

1. a flame-proof polypropylene for electronic element is characterized in that, it is made by following materials of weight proportions:
Polypropylene 60-80%
Fire retardant 5-15%
Fire retarding synergist 3-6.5%
Toughner 5-15%
Compatilizer 2-8%
Oxidation inhibitor 0.1-0.5%
Anti UV agent 0.05-0.35%.
2. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described polypropylene can be a Co-polypropylene, also can be the mixture of Co-polypropylene and homo-polypropylene, and its melting index is 0.8-50g/10min.
3. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described fire retardant is the organic halogen fire retardant, can be bromide fire retardant.
4. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described fire retarding synergist is antimonous oxide Sb 2O 3
5. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described toughner can be metallocene-polyolefin, also can be the polymkeric substance of metallocene-polyolefin and other alkene.
6. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described compatilizer is the oligopolymer of the graft polymerization of polypropylene grafted unsaturated acid or acid anhydrides, and its melting index is 40-150g/10min, and percentage of grafting is 0.5-1%.
7. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant, can be 1010, also can be composite with phosphite ester kind antioxidant, and can be 1010 and 168 composite.
8. flame-proof polypropylene for electronic element according to claim 1 is characterized in that, described photostabilizer is a hindered amine light stabilizer, can be 770,944, also can be 770 and 944 combinations.
9. the preparation method of a flame-proof polypropylene for electronic element is characterized in that, its method is as follows:
(1) weighs raw material by weight ratio;
(2) all raw materials are put into high-speed mixer and mixing 2-5 minute;
(3) discharging;
(4) raw materials mixed is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180-600 rev/min, and temperature is 160-240 ℃.
CNA2004100676400A 2004-10-29 2004-10-29 Flame-proof polypropylene for electronic element and its preparation method CN1765973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2004100676400A CN1765973A (en) 2004-10-29 2004-10-29 Flame-proof polypropylene for electronic element and its preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2004100676400A CN1765973A (en) 2004-10-29 2004-10-29 Flame-proof polypropylene for electronic element and its preparation method

Publications (1)

Publication Number Publication Date
CN1765973A true CN1765973A (en) 2006-05-03

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CN (1) CN1765973A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101613505A (en) * 2009-07-31 2009-12-30 广州市石磐石阻燃材料有限公司 A kind of environment-friendly flame-proof polypropylene material of not separating out fire retardant and preparation method thereof
CN101456994B (en) * 2007-12-14 2011-05-11 金发科技股份有限公司 Flame retardant polypropylene resin blend and preparation method thereof
CN101092496B (en) * 2006-06-20 2011-08-17 上海金发科技发展有限公司 High glazed, shock proof filled and modified polypropylene, preparation and application
CN102234396A (en) * 2011-05-10 2011-11-09 深圳市兴迪塑胶有限公司 Polypropylene composition for outdoor communication cabinet
CN101190989B (en) * 2006-11-21 2012-04-18 上海普利特复合材料有限公司 Flame-proof ultraviolet-resisting polypropylene composition
CN102634115A (en) * 2012-04-20 2012-08-15 上海富元塑胶科技有限公司 Halogen-free inflaming-retarding polypropylene composition and preparation method thereof
CN102816388A (en) * 2012-09-14 2012-12-12 苏州谷力生物科技有限公司 Flame-retardant polypropylene for air conditioners and preparation method thereof
CN105670105A (en) * 2014-11-21 2016-06-15 合肥杰事杰新材料股份有限公司 High-flow, high-modulus, flame-retarding polypropylene composite material for LFT-D production process
CN105820446A (en) * 2016-05-20 2016-08-03 唐洁净 Anti-aging flame-retardant polypropylene and preparation method thereof
CN108641395A (en) * 2018-04-10 2018-10-12 温州新鲜源包装材料有限公司 A kind of environmentally-friendly plastic and preparation method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101092496B (en) * 2006-06-20 2011-08-17 上海金发科技发展有限公司 High glazed, shock proof filled and modified polypropylene, preparation and application
CN101190989B (en) * 2006-11-21 2012-04-18 上海普利特复合材料有限公司 Flame-proof ultraviolet-resisting polypropylene composition
CN101456994B (en) * 2007-12-14 2011-05-11 金发科技股份有限公司 Flame retardant polypropylene resin blend and preparation method thereof
CN101613505A (en) * 2009-07-31 2009-12-30 广州市石磐石阻燃材料有限公司 A kind of environment-friendly flame-proof polypropylene material of not separating out fire retardant and preparation method thereof
CN102234396A (en) * 2011-05-10 2011-11-09 深圳市兴迪塑胶有限公司 Polypropylene composition for outdoor communication cabinet
CN102234396B (en) * 2011-05-10 2013-01-02 深圳市兴盛迪新材料有限公司 Polypropylene composition for outdoor communication cabinet
CN102634115A (en) * 2012-04-20 2012-08-15 上海富元塑胶科技有限公司 Halogen-free inflaming-retarding polypropylene composition and preparation method thereof
CN102816388A (en) * 2012-09-14 2012-12-12 苏州谷力生物科技有限公司 Flame-retardant polypropylene for air conditioners and preparation method thereof
CN105670105A (en) * 2014-11-21 2016-06-15 合肥杰事杰新材料股份有限公司 High-flow, high-modulus, flame-retarding polypropylene composite material for LFT-D production process
CN105820446A (en) * 2016-05-20 2016-08-03 唐洁净 Anti-aging flame-retardant polypropylene and preparation method thereof
CN105820446B (en) * 2016-05-20 2018-01-16 宁波普莱斯帝金属制品有限公司 A kind of aging-resistant flame-proof profax and preparation method thereof
CN108641395A (en) * 2018-04-10 2018-10-12 温州新鲜源包装材料有限公司 A kind of environmentally-friendly plastic and preparation method thereof

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